i bought a center console off eBay that came out of a 15 sierra 2500hd and it has wood trim panels. above the cup holder it came with dual usb and 2 round 12v receptacles ...inside storage was 1round 12 v and a hole that had something removed.. also 1 round 12v in rear.. my 15 2500hd is SLT with wood trim and i removed the dual usb and used my 110 v receptacle in that hole.. used my usb/rca/sd receptacle inside the storage where it was blank.. used my existing harness .. the only thing i didn't have plugs for was 1 12 above cup holder the led interior storage light and a mercury switch that powers the led light.. also my console came with wireless charger lid which i don't have rest of the charger ;yet. i went on eBay and found a harness removed from a 15 truck with all the connectors i need and more... part number for this is 23126812... not sure if i'm going to use whole thing or splice what i need.. I'm not sure that the truck harness has all same pins as the one i bought. although they're identical all pins may not be in truck side..hoping someone can answer this.. thanks again for all who have helped